Bump 'ashpd' version to '0.10.2'

'ashpd' version 0.9 relies on 'async-io' by default, which pulls in a lot of
extra crates.  'ashpd' 0.10 switches to 'tokio' by default.  I hope this cuts
down the size of Slint's dependency tree.

internal/backends/winit/Cargo.toml

@@ -70,7 +70,7 @@ accesskit_winit = { version = "0.23", optional = true }
 copypasta = { version = "0.10", default-features = false }
 
 [target.'cfg(not(any(target_family = "windows", target_os = "macos", target_os = "ios", target_arch = "wasm32")))'.dependencies]
-ashpd = { version = "0.9.2" }
+ashpd = { version = "0.10.2" }
 futures = { version = "0.3.31" }
 
 [target.'cfg(target_os = "macos")'.dependencies]